<div dir="ltr">Nifty. Seems more development of DVswitch is occurring than I thought.<div><br></div><div>Definitely should explore both options, you can get some pretty decent 720p web cameras these days for not very much money.</div>
<div><br></div><div>Leon</div></div><div class="gmail_extra"><br clear="all"><div>--<br>DRM 'manages access' in the same way that jail 'manages freedom.'<br><br># cat /dev/mem | strings | grep -i cats<br>Damn, my RAM is full of cats... MEOW!!</div>
<br><br><div class="gmail_quote">On Tue, Feb 4, 2014 at 1:10 AM, Jason Nicholls <span dir="ltr"><<a href="mailto:jason@mindsocket.com.au" target="_blank">jason@mindsocket.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">We'd have to test but perhaps the startup and setup time is reduced such that lag is minimized compared to the manual pipeline approach.<div><br></div><div>We also need to test out Tim's method of using a custom gst pipeline which he says only introduces 2 frames of lag (~80ms) which sounds pretty good.</div>
<div><br><div><br></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On Mon, Feb 3, 2014 at 11:30 PM, Euan de Kock <span dir="ltr"><<a href="mailto:euan@dekock.net" target="_blank">euan@dekock.net</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
<div bgcolor="#FFFFFF" text="#000000">
Just had a look at the git commits for dvswitch and spotted this
comment from 11-Jan-2014:<br>
<br>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> Implement a
generic V4L2 dvsource</span></p>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> </span></pre>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> dvgrab can read from a device using video4linux, if that device supports</span></pre>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> a DV output method. Many such devices do not.</span></pre>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> </span></pre>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> This commit adds a "v4l2-raw" mode which calls avconv rather than</span></pre>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> dvgrab; while requiring significantly more resources than dvgrab on the</span></pre>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> dvsource host, this then allows for using any V4L2-supported device as</span></pre>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'Courier';font-size:9pt"> an input to dvswitch.</span></pre>
<br>
I haven't tested it yet to see wether it's more efficient than what
we are currently using, but at least it's native to dvswitch.<br>
<br>
FYI avconv is part of libav (which is a fork of ffmpeg afaik)<br>
<br>
Regards,<br>
<br>
Euan.<br>
</div>
<br></div></div>_______________________________________________<br>
AV mailing list<br>
<a href="mailto:AV@plug.org.au" target="_blank">AV@plug.org.au</a><br>
<a href="http://lists.plug.org.au/mailman/listinfo/av" target="_blank">http://lists.plug.org.au/mailman/listinfo/av</a><br>
<br></blockquote></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><div><br></div>-- <br>Jason Nicholls<br><a href="mailto:jason@mindsocket.com.au" target="_blank">jason@mindsocket.com.au</a><br>0430 314 857<br>
</font></span></div>
</blockquote></div><br></div>